From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: linux-input@vger.kernel.org
Cc: "Hans de Goede" <hdegoede@redhat.com>,
"Pali Rohár" <pali.rohar@gmail.com>,
"Santiago Gala" <sgala@apache.org>,
"Yunkang Tang" <yunkang.tang@cn.alps.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH] Input: ALPS - fix max coordinates for v5 and v7 protocols
Date: Sat, 21 Mar 2015 20:36:56 -0700 [thread overview]
Message-ID: <20150322033656.GA35352@dtor-ws> (raw)
Commit 3296f71cd2fde7a2ad52e66a27eae419f6328066 ("Input: ALPS - consolidate
setting protocol parameters") inadvertently moved call to
alps_dolphin_get_device_area() from v5 to v7 protocol, causing both
protocols report incorrect maximum values for X and Y axes which resulted
in crash in Synaptics X driver.
Reported-by: Santiago Gala <sgala@apache.org>
Reported-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/mouse/alps.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 1bd15eb..33198b9 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2281,10 +2281,12 @@ static int alps_set_protocol(struct psmouse *psmouse,
priv->set_abs_params = alps_set_abs_params_mt;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
- priv->x_max = 1360;
- priv->y_max = 660;
priv->x_bits = 23;
priv->y_bits = 12;
+
+ if (alps_dolphin_get_device_area(psmouse, priv))
+ return -EIO;
+
break;
case ALPS_PROTO_V6:
@@ -2303,9 +2305,8 @@ static int alps_set_protocol(struct psmouse *psmouse,
priv->set_abs_params = alps_set_abs_params_mt;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
-
- if (alps_dolphin_get_device_area(psmouse, priv))
- return -EIO;
+ priv->x_max = 0xfff;
+ priv->y_max = 0x7ff;
if (priv->fw_ver[1] != 0xba)
priv->flags |= ALPS_BUTTONPAD;
--
2.2.0.rc0.207.ga3a616c
--
Dmitry
next reply other threads:[~2015-03-22 3:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-22 3:36 Dmitry Torokhov [this message]
2015-03-22 10:48 ` [PATCH] Input: ALPS - fix max coordinates for v5 and v7 protocols Hans de Goede
2015-03-22 12:33 ` Pali Rohár
2015-03-31 3:47 ` Luca Coelho
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150322033656.GA35352@dtor-ws \
--to=dmitry.torokhov@gmail.com \
--cc=hdegoede@redhat.com \
--cc=linux-input@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pali.rohar@gmail.com \
--cc=sgala@apache.org \
--cc=yunkang.tang@cn.alps.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).